Patent · US Expired

Under-the-floor lathe

US5105691A · kind A · utility

13Cited by

4References

5Claims

0Family size

Assignee

Hoesch Maschinenfabrik Deutschland AG · DE

Inventors

Dirk Brinkmann · L Atkinson Lane, DE
Uwe Leitloff · Hattingen, DE

Key dates

Filing date	Feb 27, 1991
Grant date	Apr 21, 1992
Priority date	—
Expiry date	Feb 27, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T409/305656
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An under-the-floor lathe for re-machining the wheels in railroad-vehicle wheel sets. It has two assemblies for each wheel in the set. Each assembly comprises an upright, a swiveling head, an axle-bearing support, a hold-down, two friction rollers that can be positioned against one of the wheels, and a friction-roller holder. At least one of the friction rollers in each holder is powered. Each holder rotates around an axis that travels along the mid-plane of the lathe. The object is to accelerate the machining action without using brakes that engage the friction-roller holders. Two pressure-application devices that generate opposite torques in relation to their associated pivoting axis are attached to each friction-roller holder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.